Subtract 15/75 from 90/28
1st number: 3 6/28, 2nd number: 15/75
90/28 - 15/75 is 211/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
90/28 = 90 × 75/28 × 75 = 6750/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
15/75 = 15 × 28/75 × 28 = 420/2100 - Subtract the two like fractions:
6750/2100 - 420/2100 = 6750 - 420/2100 = 6330/2100 - After reducing the fraction, the answer is 211/70
- In mixed form: 31/70
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